Deck 13: Scheduling Operations

Question 1

A bottleneck is:

A)A resource that has the maximum capacity in the facility
B)A resource whose capacity is less than the capacity of all other resources and whose capacity is less than the demand placed on it
C)A resource that should not be blocked or starved
D)A resource that has the fastest processing time
E)Two of the above

Answer 1

E

Question 2

The overriding problem in batch scheduling is?

A)Regulating input
B)Controlling output
C)Managing queues
D)Assigning labor

Answer 2

C

Question 3

Which of the following statements is incorrect about the theory of constraints (TOC)?

A)TOC was developed by Goldratt in his book,"The Goal."
B)According to TOC,the goal of any operation is to make money.
C)According to TOC,identifying the bottleneck in a process is critical for improving the overall flow through the process.
D)According to TOC,increased utilization of a non-bottleneck would improve the operating performance in a factory.

Answer 3

D

Question 4

Which of the following statements is NOT true about finite capacity scheduling (FCS)?

A)FCS is an extension of the Gantt chart reasoning.
B)FCS loads jobs backward from due dates to determine the capacity required at each work center to meet the due dates of each job.
C)FCS assumes that jobs are being scheduled through a number of work centers,each with one or more machines.
D)With the advent of modern computers,FCS has been vastly improved.
E)In FCS,attention is paid to scarce resources to facilitate job flow and to improve the performance of the shop.

Question 5

Throughput is defined as the difference between the sales and the operating expenses of a plant.

Question 6

Theory of constraints,as it applies to business systems,is based on one major premise.Which of the following statements expresses that premise?

A)A business has the obligation to consider its responsibility to society.
B)The goal of a business is to make money now and in the future.
C)The goal of a business is to make inventory whether or not it is sold.
D)The goal of a business is to eliminate all constraints simultaneously.
E)A system's constraints determine the inventory.

Question 7

Lead time for completion of a job is a function of both:

A)Capacity and demand
B)Demand and priority decisions
C)Capacity and priority decisions
D)Capacity and supply decisions
E)None of the above

Question 8

Which of the following is NOT primarily determined by Gantt charting?

A)The waiting time of each job
B)The job completion dates
C)Resource utilization
D)Finite capacity scheduling
E)Makespan of all jobs

Question 9

The theory of constraints (TOC)is:

A)A strategic technique primarily used to reduce waste
B)A strategic technique used to help firms effectively improve the rate at which raw materials are converted to finished goods and then money through sales
C)A strategic technique used to balance capacity across all resources
D)All of the above

Question 10

Use a Gantt chart to schedule the jobs in order 1,2,3 and assume that jobs cannot be split.What is the makespan?

A)12
B)9
C)14
D)3

Question 11

In the language of constraint management,inventory is:

A)The rate at which the system generates money through sales
B)Equal to the number of orders shipped
C)The raw material value of any goods being held in inventory
D)The sales of the plant minus the cost of raw materials used to produce those sales
E)The value of raw materials,labor,and overhead costs of goods being held in inventory

Question 12

Finite Capacity Scheduling can be used to identify the bottleneck in a given process.

Question 13

Finite capacity scheduling assumes which of the following?

A)Jobs cannot be split into two or more parts.
B)Jobs cannot pass each other.
C)More than one job can be scheduled on a machine at a time.
D)Capacity is limited in each work center.

Question 14

Which of the following questions is NOT answered by the scheduling system?

A)What delivery date do I promise?
B)Where is the bottleneck?
C)When should I start each particular activity or task?
D)How can I make sure that the job is completed on time?
E)To whom should I assign each task?

Question 15

The SPT rule does a better job of meeting due dates when compared to the Critical Ratio rule.

Question 16

Aggregate planning and scheduling differ in that:

A)The former ensures capacity is efficiently used whereas the latter is the acquisition of resources.
B)The former is short term in nature while the latter is medium term.
C)The former is first in the hierarchy of capacity planning decisions and the latter is last.
D)The former deals with acquiring resources and the latter deals with allocating resources.

Question 17

Scheduling often deals with which three conflicting objectives?

A)High efficiency,high profits,and short lead-time
B)High profits,low inventories,and good customer service
C)Low inventories,high efficiency,and good customer service
D)Low inventories,good customer service,and short lead-time

Question 18

Critical Ratio is:

A)The ratio between processing time and the idle time of the process
B)The ratio between remaining time until due date and the remaining processing time
C)The ratio between remaining processing time and the remaining time until due date
D)Greater than one if the job is behind schedule
E)Two of the above

Question 19

Scheduling systems need NOT answer which of the following questions?

A)What delivery date do I promise?
B)How much will the schedule cost?
C)When should I start each particular activity or task?
D)How do I make sure that the job is completed on time?

Question 20

According to Goldratt:

A)An hour lost at the bottleneck is an hour lost for the entire system.
B)A product coming out of a non-bottleneck is precious and should not be wasted.
C)Maximizing the efficiency of all resources would generate money for the company.
D)Utilization,Productivity,and Operating Expenses are the three vital metrics of a process.
E)None of the above.

Question 21

First come,first served is widely used in both service and manufacturing firms.

Question 22

What are the steps that could be taken at a bottleneck resource to increase its capacity?

Question 23

Optimal sequencing rules have found widespread use in practice.